Processes in the human body are often complex and can be difficult to represent with a physical model. Evaluate the model that Sammi designed by thinking about how her model compares to the actual interaction of the digestive and circulatory systems. Then, sort the statements according to whether they are strengths or weaknesses of her model. Not all statements will be used. 1. Cardboard and the tissue of the digestive tract have different properties.
2. Only one system is included in the model.
3. All of the major organs involved in digestion are included.
4. The capillaries are more complex than one, large plastic tube.
5. The major organs responsible for circulating blood are included.
6. The process of nutrient absorption is depicted in a visual way.
7.The corrugated cardboard shows how villi increase the surface area of the digestive tract.

answer and explanation;

volcanic rocks are igneous rocks which form from lava, molten rock which has been thrust out of a volcano onto the surface of a rocky body such as an asteroid, planet, or dwarf planet.  

plutonic rocks are igneous rocks which form from subterranean chambers of molten rock or magma. plutonic rocks make up the base of continental crust as well as oceanic crust. their slow rate of formation causes them to be coarse grained since there is plenty of time for large crystals to form before the magma solidifies into rock.

the textural difference is that plutonic rocks are more coarse grained than volcanic rocks. plutonic rocks are coarse grained while volcanic are fine grained ; glassey or fragmental. since fine and coarse are adjectives the decision as to whether a rock is fine or coarse grained is generally made on the bases of whether or not the individual crystals can be seen in most if the rock.